Hand-vise



C. E. FISH. HAND vIsE. APPLICATION FILED JAN. B, 191'4.

1,100,067. Patented .lumel 16,1914L `.IIIIIIHIMY ZZ z6 4 27' AcHnRLi-isEfhisn, or WALTHAM, MASSACHUSETTS.

HAND-WSE.

Specification of Letters Patent. Patented June 1G, :[Qfl/:L

Application filed January 8, 1914. Serial No. 810,956.

To all whom t may concern Be it known that I, CHARLES E. FISH, a citizenof the United States, residing at Waltham, in the county of Middlesexand State of Massachusetts, have invented an Improvement in Hand-Vises,of which the following is a specication. y

This invention relates to hand-vises and has for its object theconstruction of a strong and durable vise having parallel jaws, and

actuating-means for said jaws which are independent of the jaws andadapted to be i moved into and out of engagement therewith quickly.

The vise embodying this invention has a pair of jaws connected by linkswith a frame whereby they are caused to move in parallel l relation,said jaws having their inner ends formed with seats for engagement withthe actuating-means and the actuating-means comprises a screw withhand-engaging means for turning it arranged at its outer end, said screwbeing extended through a smooth bore in the frame whereby it ispermitted to slide freely therein, and having at its inner end anabutting block for engagement with the' seats at the inner ends of thejaws and al pair of dogs pivoted to the frame having threaded engagingfaces for engaging the threads ofsaid screws and having linger-en gagingmeans byV which they may be moved on their pivots to disengage thescrews, return movement thereof to normal being e'ected by means ofsprings which are associated therewith. v

Figure 1 is a side elevation of a hand-vise embodying this invention.Fig. 2 is a plan view of the same. Fig. 3 is a longitudinal horizontalsection taken on the dotted line 3 3 of Fig. 2, and, Fig. 4 is a similarview, the actuating-means for the jaws being removed from engagementtherewith.

The frame, as here shown, consists of a block 10 and a pair of long sideplates 12, 12, rigidly secured at one end to the opposite ends of saidblock. Said side plates may be of any suitable shape, so far as myinventionis concerned, although they are here shown as made quite widefor aportion of their length and quite narrow for the remainder of theirlength, the wide portions being arranged adjacent to the block 10 andthe narrow portions being remote therefrom.

14: and 16 represent the jaws which are shown, each-jaw consists of a'bar having that side adjacent to the other jaw formed A with a grooved,or it may be a flat face, for engagement with a rod, wire or otherworkto be engaged by the jaws; and having its end beveled from the outerside toward its inner or work-engaging face and having its outer side-formed with a longitudinal channel'and having its front and rear facesmade flat for connection therewith of links which support it and topermit unobstructed movement of said links as the jaws are moved; andhaving its inner end made liat or otherwise to form a seat forengagement therewith of the actuating-means. Said jaws are made of athickness somewhat less than the distance between the side plates toprovide for the links. `Each jaw is here shown as connected by two pairsof links with the side plates 18 and 19, 2O and 21, 22 and 23, 24 and 25representing the links and said links are pivotally connected at theirouter ends to the front and rear faces respectively of the jaws and attheir inner ends to the side plates, and for simplicity of constructionfour pivot pins 26, 27, 28 and 29 which are extended transverselythroughthe jaws nections for the inner ends of the severalv links. By means ofthese connections ofthe jaws with the side plates they are caused tomove longitudinally in paral el relation, yet my invention is notlimited to this particular means of connecting the jaws with the sideplates. I prefer, however, to employ parallel moving jaws on account ofthe long work-engaging faces which they will present in allpositions.

The actuating-means for the jaws is, as before stated, independent ofthe jaws and is adapted for quick opera-tion, and, as here shown, saidactuating-means comprises a screw 35 which is extended through a smoothbore in the block 10 permitting unobstructed longitudinal movementthereof, its outer end-portion having secured to it a cross-bar innerend-portion being arranged between` the side plates and having at itsinner end a block 37 with a fiat or other face `for engage.

ment with the seats formed on the inner ends of the jaws. The block 37is swiveled or otherwise loosely connected with the screw permitting aturning movement of the screw independently thereof while the block.itself is free to slide between the side plates without turning.

The screw is normally engaged by a pair of dogs 40, 4l which are madealike but oppositely disposed. Each dog is arranged between the sideplates and pivoted to the block l10, 42 representing the pivot pins andeach dog has a threaded engaging face 43 of considerable length forengaging a plurality of threads of the screw, and each dog has alinger-engaging portion 44 which is serrated and which is readilyaccessible, being eX tended outward beyond the end of the block, 1whereby it may be moved on its pivot to disj engage the threads of the"screw,I and each dog has a spring 45 associated with it for holding itsthreaded screw-engaging face normally in engagement with the screw. Itis very desirable that normal movement of the dogs shall be limited, sothat their engagement with the threads of the screw will not be toosevere when subjected to strain, as, in such case, the threads of thescrew as well as those of the engagingfaces 'are liable to becomeinjured, and to accomplish this result the bottoms of the slots in theends of the block l() are arranged to serve as abutments for the dogsand the dogs are cut away to receive said abutments and admit 'of theengaging portions thereof extending over the ends of the abutments, andsaid abutments are of the proper dimensions, so that when engaged by thedogs said dogs lwill correctly engage the threads of the screw.

Inoperating the device, assuming that the block 37 is removed fromengagement with the jaws, the jaws may be separated to rec'eve the workby moving them longitudinally by pressureexerted upon them at theirouter ends or if the links are sufficiently loose they may be moved bygravity. The work having been placed in a position between them, thescrew 35 is moved quickly a longitudinal direction, the threads 'thereofslipping beneath the dogs until the block 37 strikes the inner ends ofthe jaws,

then the screw is turned by manipulating the hand-engaging means topositively move the jaws longitudinally and cause them to firmly 'engagethe work. To remove the work the screw is turned slightly to relieve thepressure on the dogs, then the dogs are moved on their pivots todisengage the screw, whereupon the screw may be moved quickly outward ina longitudinal direction and the jaws ermitted to separate. y l I Theblock 37 and screw 35 are here shown `is a rod or wire, at least nolarger in diameter than the diameter of the bore, it may be extendedthrough said bore any desired distance.

I claim l. The hand-viseherein described consisting of a frame, a pairof jaws having a parallel motion pivotally connected with said frame,said jaws having seats at their inner ends, actuating means to move saidjaws longitudinally involving a screw slidably mounted inthe framehaving handLengag'ing means for turning it, and means borne by saidscrew for engagement with the seats on said jaws, a pair of pivoted dogshaving threaded engaging faces normally engaging a plurality of threadsof the screw and hav; ing a readily accessible finger-engaging portionby which pressure may be exerted thereupon to move them out ofengagement with the screw whereby the screw may be turned while engagedby the dogs and may be slid longitudinally when the dogs are disengagedtherefrom.

2; The hand-vise herein described consistxing of -a pair of side platesattached to a block, said block having a smooth bore through it, a pairof jaws arranged for parallel motion pivotall connected to said sideplates and having their inner ends formed with seats for engagementtherewith of the actuating means, a screw extended through said bore inthe block and slidable longitudinally therein having its innerend-portion arranged between the side plates andhaving 'at its inner enda swiveled block with a flat -face for 'en'l agement with the seats atthe inner ends o the jaws, said screw having 'at its outer endhand-'engaging means for turning it, and a pair of pivoted dogs arrangedbetween the side plates and normally engag ing the screw having threadedengaging faces for engaging a plurality of threads of the screw andhaving readily accessible inger-engaging portions by which pressure maybe exerted upon them to move them on their pivots to disengage thescrew, and springs to normally hold said dogs in engagement with thescrew. Y 3. The hand-vise herein described consistjing of a frame, apair of jaws connected ltherewith, quick adjusting actuating-means forsaid jaws comprising a screw slidably mounted in the frame havinghand-engaging means for-turning it and arranged for actuating the jawswhen turned in one direction, a pair of pivoted dogs having threadedengaging faces for engagement with a plu ralityA of threads of the screwand having linger engaging portions extended beyond the frame bearingtl'renfiA for moving them out of engagement with the screw,the framebearing said dogs having abutments and the name to this specification inthe presence of dogs having out away portions to provide two subscribingWitnesses.

for engagin said abutments thereby to limit their moveient toward thescrew, and CHARLES E FISH' 5 springs to hold said dogs normally in en-Witnesses:

gagement with the abutments. B. J. NOYES, In testimony whereof, AI havesigned my H. B. DAVIS.

Copies of this patent msyibe obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. G.

